Eng/ViewerBase.cpp at master · sergcpp/Eng · GitHub

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#include"ViewerBase.h"

#include<random>
#include<thread>

#include<Gui/BaseElement.h>
#include<Gui/Renderer.h>
#include<Ren/Context.h>
#include<Snd/Context.h>
#include<Sys/AssetFileIO.h>
#include<Sys/Json.h>
#include<Sys/ThreadPool.h>
#include<Sys/Time_.h>
#include<optick/optick.h>

#include"Log.h"
#include"ViewerStateManager.h"
#include"renderer/Renderer.h"
#include"scene/PhysicsManager.h"
#include"scene/SceneManager.h"
#include"utils/FlowControl.h"
#include"utils/Random.h"
#include"utils/ShaderLoader.h"

Eng::ViewerBase::ViewerBase(constint w, constint h, constint validation_level, constbool novsync, constbool nohwrt,
constbool nosubgroup, ILog *log, std::string_view device_name)
 : log_(log), width(w), height(h) {
 terminated = false;

// Sys::InitWorker();

 ren_ctx_ = std::make_unique<Ren::Context>();
if (!ren_ctx_->Init(w, h, log_, validation_level, novsync, nohwrt, nosubgroup, device_name)) {
throwstd::runtime_error("Initialization failed!");
 }
InitOptickGPUProfiler();

 snd_ctx_ = std::make_unique<Snd::Context>();
 snd_ctx_->Init(log_);

unsignedint num_threads = std::max(std::thread::hardware_concurrency(), 1u);
 threads_ = std::make_unique<Sys::ThreadPool>(num_threads, Sys::eThreadPriority::Normal, "worker");

 input_manager_ = std::make_unique<InputManager>();

 shader_loader_ = std::make_unique<ShaderLoader>(*ren_ctx_);

 flow_control_ = std::make_unique<FlowControl>(2 * NET_UPDATE_DELTA, NET_UPDATE_DELTA);

 random_ = std::make_unique<Random>(std::random_device{}());

 renderer_ = std::make_unique<Renderer>(*ren_ctx_, *shader_loader_, *random_, *threads_);

 physics_manager_ = std::make_unique<PhysicsManager>();

 {
usingnamespacestd::placeholders;

path_config_t paths;
 scene_manager_ = std::make_unique<SceneManager>(*ren_ctx_, *shader_loader_, snd_ctx_.get(), *threads_, paths);
 scene_manager_->SetPipelineInitializer(std::bind(&Renderer::InitPipelinesForProgram, renderer(), _1, _2, _3));
 }

 state_manager_ = std::make_unique<ViewerStateManager>();

 ui_renderer_ = std::make_unique<Gui::Renderer>(*ren_ctx_);
if (!ui_renderer_->Init()) {
throwstd::runtime_error("Couldn't initialize UI renderer!");
 }

 ui_root_ = std::make_unique<Gui::RootElement>(Gui::Vec2i(w, h));
}

Eng::ViewerBase::~ViewerBase() = default;

voidEng::ViewerBase::Resize(constint w, constint h, constbool novsync) {
 width = w;
 height = h;

 ren_ctx_->Resize(width, height, novsync);

 ui_root_->set_zone(Gui::Vec2i{width, height});
 ui_root_->Resize();
}

voidEng::ViewerBase::Start() {}

voidEng::ViewerBase::Frame() {
OPTICK_EVENT("ViewerBase::Frame");

 FrameInfo &fr = fr_info_;

 fr.cur_time_us = Sys::GetTimeUs();
if (fr.cur_time_us < fr.prev_time_us) {
 fr.prev_time_us = 0;
 }
 fr.delta_time_us = fr.cur_time_us - fr.prev_time_us;
if (fr.delta_time_us > 200000) {
 fr.delta_time_us = 200000;
 }
 fr.prev_time_us = fr.cur_time_us;
 fr.time_acc_us += fr.delta_time_us;

uint64_t poll_time_point = fr.cur_time_us - fr.time_acc_us;

while (fr.time_acc_us >= UPDATE_DELTA) {
input_event_t evt;
while (input_manager_->PollEvent(poll_time_point, evt)) {
 state_manager_->HandleInput(evt, input_manager_->keys_state());
 }

 state_manager_->UpdateFixed(UPDATE_DELTA);
 fr.time_acc_us -= UPDATE_DELTA;

 poll_time_point += UPDATE_DELTA;
 }

 fr.time_fract = double(fr.time_acc_us) / UPDATE_DELTA;

 {
OPTICK_EVENT("state_manager->UpdateAnim");
 state_manager_->UpdateAnim(fr_info_.delta_time_us);
 }
 {
OPTICK_EVENT("state_manager->Draw");
 state_manager_->Draw();
 }
}

voidEng::ViewerBase::Quit() { terminated = true; }

#if defined(REN_VK_BACKEND)

#include<Ren/Vk/VKCtx.h>

voidEng::ViewerBase::InitOptickGPUProfiler() {
 Ren::ApiContext &api = ren_ctx_->api();

 Optick::VulkanFunctions functions = {
 api.vkGetPhysicalDeviceProperties,
 (PFN_vkCreateQueryPool_)api.vkCreateQueryPool,
 (PFN_vkCreateCommandPool_)api.vkCreateCommandPool,
 (PFN_vkAllocateCommandBuffers_)api.vkAllocateCommandBuffers,
 (PFN_vkCreateFence_)api.vkCreateFence,
 api.vkCmdResetQueryPool,
 (PFN_vkQueueSubmit_)api.vkQueueSubmit,
 (PFN_vkWaitForFences_)api.vkWaitForFences,
 (PFN_vkResetCommandBuffer_)api.vkResetCommandBuffer,
 (PFN_vkCmdWriteTimestamp_)api.vkCmdWriteTimestamp,
 (PFN_vkGetQueryPoolResults_)api.vkGetQueryPoolResults,
 (PFN_vkBeginCommandBuffer_)api.vkBeginCommandBuffer,
 (PFN_vkEndCommandBuffer_)api.vkEndCommandBuffer,
 (PFN_vkResetFences_)api.vkResetFences,
 api.vkDestroyCommandPool,
 api.vkDestroyQueryPool,
 api.vkDestroyFence,
 api.vkFreeCommandBuffers,
 };

OPTICK_GPU_INIT_VULKAN(&api.device, &api.physical_device, &api.graphics_queue, &api.graphics_family_index, 1,
 &functions);
}

#else

voidEng::ViewerBase::InitOptickGPUProfiler() {}

#endif